OWNER’S MANUAL
Congratulations on the purchase of your new Kustom amplifier! Your new GROOVE
1200 offers unsurpassed sound quality and performance characteristics. Inside this
manual you’ll find detailed information regarding the amplifier’s features. We wish you
many years of enjoyment with your Kustom GROOVE 1200.
GROOVE 1200
BASS AMPLIFIER
2
ENGLISH
Danger
Exposure to extremely high noise levels may cause a permanent
hearing loss. Individuals vary considerably to noise induced hearing
loss but nearly everyone will lose some hearing if exposed to sufficiently
intense noise for a sufficient time. The U.S. Government's
Occupational Safety and Health Administration (OSHA) has specified
the following permissible noise level exposures:
According to OSHA, any exposure in the above permissible limits could
result in some hearing loss. Ear plugs or protectors in the ear canal or over
the ears must be worn when operating this amplification system in order to
prevent a permanent hearing loss. If exposure in excess of the limits as
put forth above, to insure against potentially harmful exposure to high
sound pressure levels, it is recommended that all persons exposed to
equipment capable of inducing high sound pressure levels, such as this
amplification system, be protected by hearing protectors while this unit is in
operation.
DURATION PER DAY (HOURS)86432 1
SOUND LEVEL (dB) 90 93 95 97 100 103
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE
OF NON-INSULATED "DANGEROUS VOLTAGE" WITHIN THE
PRODUCT'S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE
TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE
OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING)
INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE UNIT.
1. Read all safety and operating instructions before using this
product.
2. All safety and operating instructions should be kept for future
reference.
3. Read and understand all warnings listed on the operating
instructions.
4 . Follow all operating instructions to operate this product.
5. This product should not be used near water, i.e. Bathtub,
sink,swimming pool, wet basement, etc.
6. Only use dry cloth to clean this product.
7. Do not block any ventilation openings, It should not be placed flat
against a wall or placed in a built-in enclosure that will impede the
flow of cooling air.
8. Do not install this product near any heat sources ;such
as,radiators, heat registers, stove or other apparatus (including
heat producing amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-
type plug. A polarized plug has two blades with one wider than the
0ther.A grounding-type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your
safety If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. Protect the power cord being walked on or pinched, particularly at
Plugs, convenience receptacles and the point where they exit
from the apparatus. Do not break the ground pin of the power
supply cord.
11 . Only use attachments specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by
the manufacturer or sold with the apparatus. When a cart is used,
use caution when moving cart/apparatus combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for
long periods of time.
14. Care should be taken so that objects do not fall and liquids are
not spilled into the unit through the ventilation ports or any other
openings.
15. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way;
such as, power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally
or has been dropped.
16. WARNING: To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.
IMPORTANT SAFETY INSTRUCTIONS
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE CHASSIS. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.
CAUTION
APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING
AND THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES,
SHALL BE PLACED ON THE APPARATUS.
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Product Contents
These items are included with your GROOVE 1200 amplifier.
Be sure to contact your dealer if any items are missing.
4
Speaker Cable
KAC-GRVSCC
Footswitch Cable
Footswitch
KAC-GFS100
Warranty Card
OWNER'S MANUAL
Owners Manual
SOLO
MUTE
GROOVE 1200 Amplifier
Connect AC power cord, footswitch cable, and speaker cable. If using an
active bass, toggle the to Active. If the Red
lights while playing, toggle the to Passive.
input,
Active/Passive Switch Clip
Indicator Active/Passive Switch
Turn on the , adjust the until the Green
lights regularly, turn up slowly, and start
playing.
Power Switch Gain Control Signal
Indicator Master Volume Control
Your GROOVE 1200 is ready to play right out of the box. After reviewing
this Quick Setup page, feel free to experiment with the controls and
create your own unique sound.
Quick Setup
Set tone controls flat and down.Master Volume Control
5
3
2
1
Insert and twist
clockwise to lock.
DIRECT OUTPUT
SPEAKER OUTPUT
EFFECTS LOOP
SEND
RETURN
FOOTSWITCH
TUNER OUT
GROUND
LIFT
POST EQ
PRE EQ
DESIGNED IN USA
MADE IN CHINA
SERIAL NUMBER
MODEL: GROOVE 1200
2001124
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
RISK OF ELECTRIC SHOCKRISK OF ELECTRIC SHOCK
DO NOT OPENDO NOT OPEN
CAUTION
CHASSIS SURFACE HOT
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
BREAKER
1
5
A
1
5
A
SOLO
Speaker
Cabinet
Front Panel
a
c
d
e
f
g
h
i
j
Guitar Input Jack:
Gain Control:
Clip Indicator:
Signal Indicator
Mute Indicator
Mute On/Off Button
Bass Control
Mid Control
High Control:
T
Adjust clockwise to increase the amount of preamp
volume. When set too low, the
will not light.
Indicates when the input signal has reached
maximum level. The
is the only control on the amplifier that has
an effect on this. If the switch is set to Active and
the Clip Indicator still lights, lower the output of
your instrument to correct.
Indicates when sufficient signal is applied to the
preamp. Adjusting the will affect
this
This indicator will light when the preamp is muted.
This can be done by either pressing the
on the front panel or by pressing
Mute on the footswitch. The
will still be active when this is lit
When this switch is active the preamp will be
muted. However, the is always
active.
Controls the amount of low frequency in the
signal. The changes the
center frequency for this control. (See )
Controls the amount of mid frequency in the
signal. The changes the
center Frequency for this control. (See )
Controls the amount of high frequency in the signal.
The changes the center
frequency of this control. (See )
Signal Indicator
Note: Active / Passive
Switch
Gain Control
Mute
On/Off Button
Note: Tuner Out
Jack
Tuner Out Jack
Normal / Sub Switch
Normal / Shift Switch
Normal / Define Switch
.
Controls the overall output of the amplifier.
Turns AC power on and off.
Indicates when the is pressed.
This will also light when Solo on the footswitch is
pressed.
When this is active, the signal to the power amp
will be boosted by 6dB.
Indicates when AC power is applied to the
amplifier.
:
:
:
:
:
Normal / Sub Switch:
Normal / Shift Switch:
Normal / Define:
Graphic Equalizer Section:
Master Volume Control:
Power Switch:
Solo Indicator:
Solo On/Off Button:
Power Jewel:
k
l
m
k
l
m
n
o
p
q
r
s
Solo On/Off Button
his is a 1/4" 2-conductor input jack for plugging
in your instrument. It is intended for bass guitar
but will accept other instruments as well
Set this switch to Active when using an active bass
guitar. Setting to Active will lower the input gain
by 12 dB.
.
.
When this switch is set to Normal, the
frequency is centered at 100Hz. When this
switch is set to Sub, the frequency is
centered at 50Hz.
When this switch is set to Normal, the
frequency is centered at 800Hz. When this
switch is set to Shift, the frequency is
centered at 400Hz.
When this switch is set to Normal, the
frequency is centered at 3KHz. When this
switch is set to Define, the frequency
is centered at 5KHz
This 9-band graphic equalizer is used to finely
adjust the sound to taste.
.
b Active/Passive Switch
Bass
Control
Bass Control
Mid
Control
Bass Control
High
Control
High Control
6
t
u
v
w
x
y
z
{
|
}
Circuit Breaker:
Power Cord
Speaker Outputs
Ground Lift Switch
Direct Output Jack
Pre EQ / Post EQ Switch:
Tuner Out Jack:
Effects Send Jack
Effects Return Jack
Footswitch Jack:
:
:
Use
:
:
:
:
This circuit breaker will trip when too much
current is applied to the amplifier. To reset: Turn
off , press circuit breaker button,
and turn the on. Note: If the
Circuit Breaker trips repeatedly when AC power
is applied, take the amplifier to an authorized
service center for repair.
This supplies AC power to the amplifier. If the
cord becomes damaged, take the amplifier to an
authorized service center for repair.
these jacks to connect the amplifier to
speaker cabinets using heavy duty Speakon
speaker cables. These jacks are connected
together internally. See
(Page 8) for speaker cabinet loading
information. To prevent overheating and
possible loss of signal, do not connect a load
lower than 2 ohms. (To connect a cable: Align tab
on speaker cable connector slot. Insert and twist
one quarter turn clockwise to lock. To remove a
cable: Pull back release button on cable connector,
twist connecter counter clockwise one quarter
turn, and pull out connecter.)
Activating this switch removes the ground
connection on the .
Removing the ground connection will eliminate
related signal hum.
This is a line level output used to connect the
amplifier to another device, such as a mixer or
recorder.
When set to Pre EQ, the signal
will be unaltered by the EQ sections of the preamp.
When set to Post EQ, the
signal will reflect the entire sound (including EQ
settings) of the preamp. The
and have no effect on
the signal.
Use this jack to connect to a tuner or other line level
device. This jack is always active and is a pre-gain
output.
Use this jack to connect to the input of an external
effects processor. This jack can also be used as a
preamp out.
Use this jack to connect to the output of an external
effects processor. This jack can also be used as a
power amp in.
This 3-conductor 1/4” jack may be used for
connecting a footswitch to the amplifier
(Footswitch model KAC-GFS100 is included with
the amplifier). The footswitch will then control the
Mute and Solo features.
Power Switch
Power Switch
Amplifier Loading
Chart
Note:
Direct Output Jack
Direct Output Jack
Direct Output Jack
Note: Master Volume
Control Solo On/Off Button
Direct Output Jack
d
7
Rear Panel
25
DIRECT OUTPUT
SPEAKER OUTPUT
EFFECTS LOOP
SEND
RETURN
FOOTSWITCH
TUNER OUT
GROUND
LIFT
POST EQ
PRE EQ
DESIGNED IN USA
MADE IN CHINA
SERIAL NUMBER
MODEL: GROOVE 1200
2001124
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
RISK OF ELECTRIC SHOCKRISK OF ELECTRIC SHOCK
DO NOT OPENDO NOT OPEN
CAUTION
CHASSIS SURFACE HOT
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
BREAKER
1
5
A
1
5
A
Speaker Connection Diagram
8
B
A
Cabinet
Cabinet
Amplifier Loading Chart
Cabinet A’s Impedance (ohms)
This chart can help you determine what load (ohms) is present on the amplifier when using multiple cabinets.
- To use this chart with two cabinets (A and B), find cabinet A’s impedance (ohms) column and cabinet B’s
impedance row on the chart. The total load on the amplifier is shown in the box where they meet. For example: If
cabinet A’s impedance is 8 ohms and cabinet B’s impedance is 4 ohms, the total load on the amplifier would be 2.67
ohms.
- To use this chart with three or more cabinets, find the total load for two cabinets and then use the result for
cabinet A’s impedance column. The third cabinet will then be used for cabinet B’s impedance row on the chart.
Find the total load on the amplifier and repeat if more cabinets are used. For example (using 3 cabinets): If the first
cabinet (cabinet A) has an impedance of 16 ohms and the second (cabinet B) has an impedance of 8 ohms, the
total load would be 5.33 ohms. Using this load (5.33) as cabinet A’s impedance and a third cabinet’s (new cabinet
B) impedance of 4 ohms, you would find that the total load on the amplifier is 2.29 ohms. It is not
recommended to use any combination of cabinets that has a resulting load in a shaded area of the chart.
Note:
Cabinet
B’s
Impedance
Total load on amplifier
Note: To prevent overheating and possible loss of signal, do
not use any combination of cabinets that results in a box that is shaded.
Speaker cabinet
loads (ohms) applied
to the amplifier
Alternate Connection Diagrams
DIRECT OUTPUT
SPEAKER OUTPUT
EFFECTS LOOP
SEND
RETURN
FOOTSWITCH
TUNER OUT
GROUND
LIFT
POST EQ
PRE EQ
DESIGNED IN USA
MADE IN CHINA
SERIAL NUMBER
MODEL: GROOVE 1200
2001124
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
RISK OF ELECTRIC SHOCKRISK OF ELECTRIC SHOCK
DO NOT OPENDO NOT OPEN
CAUTION
CHASSIS SURFACE HOT
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
BREAKER
1
5
A
1
5
A
=
DIRECT OUTPUT
SPEAKER OUTPUT
EFFECTS LOOP
SEND
RETURN
FOOTSWITCH
TUNER OUT
GROUND
LIFT
POST EQ
PRE EQ
DESIGNEDIN USA
MADEIN CHINA
SERIAL NUMBER
MODEL: GROOVE1200
2001124
ATTENTION
RISQUEDE CHOC ELECTRIQUE-NE PAS OUVRIR
RISKOF ELECTRIC SHOCKRISKOF ELECTRIC SHOCK
DONOT OPENDONOT OPEN
CAUTION
CHASSISSURFACE HOT
ATTENTION
SUPERFICEDE CHASSIS CHAUDE
BREAKER
1
5
A
1
5
A
8 Ohms
8 Ohms
8 Ohms
8 Ohms
Total Load On Amplifier = 2 Ohms
DIRECT OUTPUT
SPEAKER OUTPUT
EFFECTS LOOP
SEND
RETURN
FOOTSWITCH
TUNER OUT
GROUND
LIFT
POST EQ
PRE EQ
DESIGNEDIN USA
MADEIN CHINA
SERIAL NUMBER
MODEL: GROOVE1200
2001124
ATTENTION
RISQUEDE CHOC ELECTRIQUE-NE PAS OUVRIR
RISKOF ELECTRIC SHOCKRISKOF ELECTRIC SHOCK
DONOT OPENDONOT OPEN
CAUTION
CHASSISSURFACE HOT
ATTENTION
SUPERFICEDE CHASSIS CHAUDE
BREAKER
1
5
A
1
5
A
8 Ohms
8 Ohms
8 Ohms
8 Ohms
Total Load On Amplifier = 2 Ohms
open 16 8 5.33 4 3.20 2.67 2
open open 16 8 5.33 4 3.2 2.67 2
16 16 8.00 5.33 4.00 3.20 2.67 2.29 1.78
8 8 5.33 4.00 3.20 2.67 2.29 2.00 1.60
5.33 5.33 4.00 3.20 2.67 2.29 2.00 1.78 1.45
4 4 3.20 2.67 2.29 2.00 1.78 1.60 1.33
3.20 3.2 2.67 2.29 2.00 1.78 1.60 1.46 1.23
2.67 2.67 2.29 2.00 1.78 1.60 1.46 1.34 1.14
2 2 1.78 1.60 1.45 1.33 1.23 1.14 1.00
9
GROOVE 1200
Specifications
The GROOVE 1200 was designed to mount into a standard 2-space rack. When mounting, use 4
screws to secure the amplifier to the rack. When using only one amplifier, use the bottom 2 spaces in the rack.
However, if more than one amplifier is used, leave one space open between the amplifiers to ensure proper
ventilation (shown below).
Rack Mounting Instructions
Input Impedance
Output Power 450 Watts 8 Ohms @ 5% THD
750 Watts 4 Ohms @ 5% THD
1200 Watts 2 Ohms @ 5% THD
Hum & Noise -60db Residual Noise, all level controls 0% (minimum)
27db Preamp output
15db Preamp output, Active
25db Tuner output
27db Direct output
32db Power amp gain
Amplifier Type Class B Descrete device Class B amplifier
USA/Canada 120VAC/60Hz, 1500W nominal
Europe 230VAC/50Hz, 1500W nominal
UK 230VAC/50Hz, 1500W nominal
Australia 240VAC/50Hz, 1500W nominal
Japan 100VAC/50-60Hz, 1500W nominal
mm/kg 89 (Height) x 483 (Width) x 390 (Depth), 14 kg
Inches/Pounds 3.5 (Height) x 19 (Width) x 15.5 (Depth), 31 lbs
Actual response is tailored to speakers for accurate acoustical
response using a bass guitar as input.
Dimensions
Power Requirements
Footswitch
System Gain
All measurements taken with 1 KHz
input signal, Tone controls flat, Gain and
Volume Max imum. Measured at effects
send output jacks on rear unless noted.
200K Ohm
Use any standard tip-ring-sleeve cable
Any non-momentary two-button foot switch can be used.
Frequency Response 20HZ-20kHz
10
1.6 KHz
3.2 KHz
6.4 KHz
+/- 12 db
+1
-1
Speaker
Outputs
+1
-1
Power
Amp
Volume
6 db Boost
Solo Boost
Switch
Power
Amp In
Preamp
Out
Direct
Out
Tuner
Out
Ground
Lift
Switch
Signal Flow Diagram
Pre/Post
EQ Switch
GROOVE 1200
Input
Active/Passive
Switch
Active = 12 db
Cut
Clip
LED
Mute
Switch
Gain
Signal
LED
Normal
Sub
Normal
Shift
Normal
Define
100 Hz
50 Hz
800 Hz
400 Hz
3 KHz
5 KHz
Bass
Mid
Treble
30 Hz
50 Hz
100 Hz
200 Hz
400 Hz
Graphic
EQ
800 Hz
We: Kustom Musical Amplification Inc.
4940 Delhi Pike
Cincinnati, OH 45238
Tel: 1-513-451-5000 Fax: 1-513-347-2192
Declare that the product
Product name: Kustom
Product model number: Groove 1200
to which this declaration relates is in conformity with the following standards;
EN55013 (A12) : 1995 Limits and methods of measurement of radio disturbance characteristics of broadcast receivers and
associated equipment.
EN55020: 1995 Electromagnetic immunity of broadcast receivers and associated equipment.
EN61000-3-2: 1995 Limits for harmonic current emissions (equipment input current 16A per phase).
EN61000-3-3: 1995 Limitation of voltage fluctuations and flicker in low voltage supply systems for equipment with
rated currents 16A.
EN55103-1: 1995 Electromagnetic Compatibility - Product family standard for Audio, Video Audio-visual and
entertainment Lighting Control Apparatus.
EN60065: 1994 Safety requirements for main operated electronic and related apparatus for household and similar
general use.
Following the provisions of EU Council Directive(s): 72/73 EEC and 89/336/EEC.
We the undersigned, hereby declare that the equipment specified above conforms to the aforementioned directive(s).
Name of authorized person: Rick Kukulies, VP Engineering
Signature:______________________ Date: 05 June 2001
<
<
Kustom Musical Amplification Inc. (BC Rich)
4940 Delhi Pike
Cincinnati, OH 45238
Tel: 1-513-451-5000 Fax: 1-513-347-2192
EC Declaration of Conformity
11
Kustom Amplification Inc., 4940 Delhi Pike, Cincinnati, OH • USA
(800) 999-5558 Web: www.kustom.com
/
